FIELD: chemistry.
SUBSTANCE: cooling composition includes from 30 to 50 wt % of difluorinemethane (HFC32) and from 70 to 50 wt % of 2,3,3,3-tetrafluorinepropylene (HFO1234yf). Composition can additionally contain inhibitor of polymerisation, stabiliser, freon. Cooling composition has low value of GWP (direct influence on global warming is low) and good power efficiency (indirect influence on warming is low).
EFFECT: prevention of heat loss as a result of temperature sliding in heat-exchanger.
8 cl, 1 tbl, 1 ex
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